111071710607161 has 16 divisors (see below), whose sum is σ = 116328424608000. Its totient is φ = 105850979201088.

The previous prime is 111071710607153. The next prime is 111071710607177. The reversal of 111071710607161 is 161706017170111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111071710607161 - 2³ = 111071710607153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111071710602161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9646015 + ... + 17753563.

It is an arithmetic number, because the mean of its divisors is an integer number (7270526538000).

Almost surely, 2^{111071710607161} is an apocalyptic number.

It is an amenable number.

111071710607161 is a deficient number, since it is larger than the sum of its proper divisors (5256714000839).

111071710607161 is a wasteful number, since it uses less digits than its factorization.

111071710607161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8109768.

The product of its (nonzero) digits is 12348, while the sum is 40.

Adding to 111071710607161 its reverse (161706017170111), we get a palindrome (272777727777272).

The spelling of 111071710607161 in words is "one hundred eleven trillion, seventy-one billion, seven hundred ten million, six hundred seven thousand, one hundred sixty-one".